Title :
A personal communications network using a Ka-band satellite
Author :
Palmer, Larry C. ; Laborde, Enrique ; Stern, Alan ; Sohn, Philip Y.
Author_Institution :
Hughes Network Syst. Inc., Germantown, MD, USA
fDate :
2/1/1992 12:00:00 AM
Abstract :
The feasibility of a personal communications network using portable terminals that can provide 4.8 kb/s voice communications to a hub station via Ka-band geosynchronous satellite has been investigated. Tradeoffs are examined so that the combined system of hub and gateway earth stations, the satellite, and the personal terminals can provide a competitive service in terms of cost, availability, and quality. A baseline system that uses a spacecraft with approximately 140 spot beams to cover the contiguous US (CONUS) and 5 W power amplifiers in each beam is described. Satellite access in both the forward and return directions uses frequency-division multiple-access/code-division multiple-access (FDMA/CDMA) with a chip rate of 2.5 Mchip/s
Keywords :
code division multiple access; frequency division multiple access; personal communication networks; satellite relay systems; 4.8 kbit/s; 5 W; FDMA/CDMA; Ka-band satellite; availability; chip rate; competitive service; contiguous US; cost; frequency-division multiple-access/code-division multiple-access; gateway earth stations; geosynchronous satellite; hub station; personal communications network; personal terminals; power amplifiers; quality; spot beams; voice communications; Artificial satellites; Availability; Costs; Frequency division multiaccess; Multiaccess communication; Personal communication networks; Power amplifiers; Satellite ground stations; Space vehicles;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
